3PVN

Triclinic form of Human C-Reactive Protein in complex with Zinc


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A Staggered Decameric Assembly of Human C-Reactive Protein Stabilized by Zinc Ions Revealed by X-ray Crystallography.

Guillon, C.Bigouagou, U.M.Folio, C.Jeannin, P.Delneste, Y.Gouet, P.

(2014) Protein Pept Lett 22: 248-255

  • DOI: 10.2174/0929866522666141231111226
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Human C-reactive protein (CRP) is an acute phase protein, which harbours both host defence and scavenging properties. In this study, we obtained two new crystal forms of CRP, where CRP forms a symmetric, staggered dimer of pentamers. In one of these ...

    Human C-reactive protein (CRP) is an acute phase protein, which harbours both host defence and scavenging properties. In this study, we obtained two new crystal forms of CRP, where CRP forms a symmetric, staggered dimer of pentamers. In one of these structures, obtained in the presence of HIV-1 Tat protein, this dimer of pentamers is stabilized by two zinc ions trapped within a cleft of the effector face of CRP. These two decameric interfaces involve complementary surfaces of CRP pentamers and bury a large area of ~2000 Å(2) per pentamer, suggesting a biological role of this interface. These two novel decameric interfaces and the involvement of zinc might have important consequences in the understanding of CRP biological functions.


    Organizational Affiliation

    "Biocrystallography and Structural Biology of Therapeutic Targets", UMR 5086 CNRS Universite de Lyon, IBCP 7, passage du Vercors, 69367 Lyon cedex 7, France. christophe.guillon@ibcp.fr.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-reactive protein
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
206Homo sapiensMutation(s): 0 
Gene Names: CRPPTX1
Find proteins for P02741 (Homo sapiens)
Go to UniProtKB:  P02741
NIH Common Fund Data Resources
PHAROS  P02741
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, G, L, S, T
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.98 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.3α = 79.9
b = 96.4β = 77.1
c = 160.4γ = 69.4
Software Package:
Software NamePurpose
ADSCdata collection
AMoREphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-11
    Type: Initial release
  • Version 1.1: 2015-03-18
    Changes: Database references